Identify $X$ and $Y$ from figure.
$X$ -Male gametes, $Y$ -Synergid
$X$ -Plasma membrane, $Y$ -Egg cell
$X$ -Vegetative cell, $Y$ -central cell
$X$ -Synergid, $Y$ -Egg cell
The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.
Give information about compatible and incompatible pollen.
Name the part of gynoecium that determines the compatible nature of pollen grain.
$60\; \%$ of the angiosperms shed their pollens at the
Function of filiform apparatus is to